Computer power supply circuit
A computer power supply and circuit technology, applied in the direction of data processing power supply, high-efficiency power electronic conversion, electrical components, etc., can solve the problems of unfavorable high-efficiency conversion and large power consumption of computer switching power supply, and achieve the goal of avoiding power consumption and improving conversion efficiency Effect
Pending Publication Date: 2021-07-20
广东迅扬科技股份有限公司
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Problems solved by technology
Most of the computer switching power supplies currently on the market are designed to directly convert the external power supply into various voltages required by the computer, which also includes the drive of the fan. Generally, the fan will start when the computer is working and work to dissipate heat. The computer is always working, and the fan is always on, which causes greater power consumption, which is not conducive to the high-efficiency conversion of the computer switching power supply.
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[0022] In order to facilitate the understanding of those skilled in the art, the following description of the invention will be made in conjunction with the drawings, and the contents mentioned in the present invention are not limited. The present invention will be described in detail below with reference to the drawings.
[0023] A computer power supply circuit provided in this example, such as figure 1 Including input rectifier module, power correction circuit, standby circuit, semi-bridge LLC resonant circuit, synchronous output rectifier circuit, and fan speed control circuit, external power supply is rectified by output rectifying modules, and the rectified voltage input power correction circuit performs power correction and The boosting, the standby circuit converts the voltage output by the input rectifier module into the standby voltage, the half bridge LLC resonance circuit is used to convert the voltage output after boosting the power to boost into the computer's operati...
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The invention relates to the technical field of power supply design, in particular to a computer power supply circuit which comprises an input rectification module, a power correction circuit, a standby circuit, a half-bridge LLC resonance circuit, a synchronous output rectification circuit and a fan speed regulation circuit. External power supply is rectified by the output rectification module; the rectified voltage is input into the power correction circuit for power correction and boosting, the standby circuit converts the voltage output by the input rectification module into standby voltage, and the half-bridge LLC resonance circuit converts the voltage boosted by the power correction circuit into working voltage of a computer; and the synchronous output rectification circuit transforms and rectifies the output of the half-bridge LLC resonance circuit into another working voltage of the computer. According to the computer power supply circuit provided by the invention, by arranging the fan speed regulation circuit, the fan can regulate the rotating speed in real time according to the environment temperature, so that unnecessary loss is avoided, and the conversion efficiency of the computer power supply circuit is improved.
Description
Technical field [0001] The present invention relates to the field of power supply design, in particular to a computer power supply circuit. Background technique [0002] In the computer, the power conversion is a device that converts AC energy into direct current electrical energy and supplies power to the host accessories. The design of the power conversion is mainly in the conversion efficiency and the continuity of continuity. At present, the design of computer switching power supplies on the market, most of which uses directly to convert external power into computer work, including the fan driver, and the general fan is started when the computer works and works, as long as The computer has been working, the fan has been launched, which has caused greater power consumption, which is not conducive to the high efficiency conversion of computer switching power supplies. Inventive content [0003] The present invention provides a computer power supply circuit for prior art, by pr...
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IPC IPC(8): G06F1/26H02M7/219
CPCG06F1/26H02M7/219Y02B70/10
Inventor 宋旭东徐国利许文才张魁尚云飞孙伦文
Owner 广东迅扬科技股份有限公司